So when the throttle is pegged, the wideband is jumpin all over the place. It starts out right about where it should be (high 10's) but gradually starts to lean out. Fuel pressure is holding strong and I put a new MAF in. Not sure what's going on here.
~ Forged engine of some type ~ Ball bearing turbo of an unconfirmed size ~ 4L8000 trans ~ Beefy fuel system ~
Exhaust leak before the oxygen sensor?
2000 Sierra 2500 HD. 408 (11-2007) Whipplecharged, Big (18x24x4) FMIC.
possibly.....would that cause the wideband to bounce all over the place?
~ Forged engine of some type ~ Ball bearing turbo of an unconfirmed size ~ 4L8000 trans ~ Beefy fuel system ~
Posting Permissions
Reply With Quote